CN206897205U

CN206897205U - Agitating shaft

Info

Publication number: CN206897205U
Application number: CN201720366236.6U
Authority: CN
Inventors: A·塞勒; M·贝克托尔德; C·鲁卡契; M·多尔
Original assignee: Maschinenfabrik Gustav Eirich GmbH and Co KG
Current assignee: Maschinenfabrik Gustav Eirich GmbH and Co KG
Priority date: 2016-04-08
Filing date: 2017-04-07
Publication date: 2018-01-19
Anticipated expiration: 2027-04-07
Also published as: US10456758B2; CN109070027B; PL3439774T3; WO2017174521A1; US20190076802A1; DK3439774T3; JP2019513544A; CA3018023C; RU2683090C1; DE102016106536A1; DE202016106597U1; BR112018070393A2; AR108187A1; EP3439774B1; ZA201806331B; PT3439774T; CN109070027A; KR102023350B1; TWI735554B; UA122438C2

Abstract

A kind of agitating shaft, including tool holder and stirring vane are the utility model is related to, wherein, tool holder has groove, and a part for stirring vane is fixed in the groove.In order to provide simple agitation axle, propose retained part, the retained part is installed in groove, for stirring vane part to be fixed in a groove, wherein retained part, groove and stirring vane part have such configuration so that the power locking connection of stirring vane in a groove is realized by means of retained part.By such a agitating shaft, it can reliably allow being individually replaced for single stirring vane in a straightforward manner.

Description

Agitating shaft

Technical field

A kind of agitating shaft, including tool holder and stirring vane are the utility model is related to, wherein, one of stirring vane Divide and be fixed in the groove in tool holder.

Background technology

Agitator with the one or more agitating shafts arranged perpendicular to the bottom of stirring container is known.Agitating shaft Generally there are multiple stirring vanes, these stirring vanes be arranged in multiple planes and from the longitudinal axis of agitating shaft radially to Outer extension.

Stirring vane as Work tool is worn, and therefore must be updated by given interval. Do not developed it was found that wearing at each stirring vane with identical speed.Covered by the material layer to be mixed with larger height The stirring vane noticeable wear of near surface of the stirring vane of lid than being arranged in material to be mixed is faster.

It is known that stirring vane is directly screwed on stirring tool axle.The advantages of generally acknowledged is, each stirring vane can be with Separately installed, but have the drawback that, fixing screws are exposed to the abrasion and pollution of material to be mixed so that often when long Between work after, stirring vane easily can no longer take out from tool holder.

Therefore, there is the AS for stirring vane to be fixed to tool holder, wherein, stirring vane uses Machinery or or even hydraulic clamping device be clamped in center.However, these devices have the drawback that, due to mechanically or hydraulically clamping Device and cause the increase of the structural amount of paying.In addition to these systems, all stirring vanes can only unclamp simultaneously, i.e. i.e. Those stirring vanes for making to be not intended to change must also unclamp.

Utility model content

Therefore, the purpose of this utility model is to provide a kind of simple agitation axle with tool holder, and the instrument is kept Device reliably allows single stirring vane to be individually replaced in a straightforward manner.

The purpose is accomplished by the following way, i.e. the retained part being installed in the groove in tool holder is used for will Stirring vane part is fixed in a groove, and wherein retained part, groove and stirring vane part have such configuration so that stir The power locking connection of blade in a groove is mixed to be realized by means of retained part.

In other words, each stirring vane is associated with the retained part of its own, in the case where stirring vane is to be replaced, The retained part of its own is unclamped so that stirring vane part and tool holder to be unclamped.

Thus, for example, groove can have the first groove part and the second groove part, wherein stirring vane part is arranged In the first groove part, and retained part is at least partially disposed in the second groove part.

For example, retained part can be fully accommodated in the second groove part so that the first groove part is arranged for Stirring vane part is received, and the second groove part is arranged for receiving retained part.It should be noted, however, that paddle Piece part can also have stirring vane part recess again, and a part for retained part is installed to the stirring vane part recess In so that retained part can also be partially positioned in the first groove part.

Therefore retained part and stirring vane part are installed in groove with mutual juxtaposed relation, to provide stirring vane The clamping of part in a groove.

In a preferred embodiment, retained part is not only supported at stirring vane part and is supported on the second groove part Wall at, wherein retained part and the wall of stirring vane part or the second groove part all have mutually corresponding to wedge-shaped surface.

The mutual corresponding wedge-shaped surface for playing a part of similar slope defines, and passes through the insertion of retained part, it is pressed Lean against on stirring vane part.For example, retained part can be kept by one, two or more screw fixed to instrument Device.Then, by tightening screw, retained part wedge-shaped surface corresponding to is drawn into groove, thus stirring vane part branch Support is in groove.

In the especially preferred embodiments, retained part, which has, pushes screw thread open, pushes screw thread open by means of this, retained part can To be released again from groove by pushing screw open.For example, pushing screw thread open may be disposed so that screw can be with such side Formula, which is screwed into, to be pushed open in screw thread so that the screw end away from head of screw is resisted against the surface of agitating shaft, e.g. tool holder Surface so that retained part is released by rotary screw from groove.

The angle that the angle of wedge, i.e. wedge-shaped surface are included relative to the plane of the longitudinal axis perpendicular to agitating shaft in principle may be used With unrestricted choice.In practice, the value more than 7 ° has proven to appropriate.Slight self-locking action is contemplated that by the angle. What if this was not intended to, the angle of wedge must be bigger, such as big to about 15 °.

In another preferred embodiment, the second groove part is in axial direction arranged in beside the first groove part.Its is excellent Point is, is applied to due to the revolving force expected during use in agitating shaft, therefore without extra power by stirring vane On retained part.In principle, the second groove part can not be arranged only in axial direction the first groove part top and It is arranged in the lower section of the first groove part.In practice, it has proved that if the second groove part is in axial direction arranged in The top of one groove part is then appropriate, because so being easier to realize peace of the stirring vane part in tool holder Dress.In this respect, term " in ... top " and it is related to the expection operating position of agitating shaft " in ... lower section ".Term " is arranged to height In the end of the agitating shaft of the other end " it is used to represent upper end.Therefore, if the second groove part is arranged in the first groove part Top, then this means the second groove part is arranged to than the first groove part closer to the upper end of agitating shaft.

In a preferred embodiment, it is arranged on agitating shaft for agitating shaft to be fixed to the instrument of motor drive shaft or drive shaft At end.

In another preferred embodiment, tool holder includes multiple instruments holding disks for being connected to tool shaft and for edge Axial direction branch stake tool keeps the support meanss of disk.Therefore, agitating shaft includes tool shaft, instrument keeps disk, instrument keeps disk Support meanss, the clamping device and stirring vane of stirring vane.

Groove arrangement is kept at least one instrument in disk.This embodiment this have the advantage that agitating shaft has module Change structure, and according to agitating shaft it is corresponding needed for length, in addition instrument holding disk can be easily mounted on the axle.Example Such as, the axle can have hexagonal cross-section, and instrument keeps disk to have hexagon through hole, and instrument keeps disk to pass through The hexagon through hole is shifted onto on the axle.This construction this have the advantage that instrument keeps disk to connect with form fit formula locking relation It is connected to the axle so that instrument keeps disk to be rotated about the axis thereof by rotating the axle.

Groove, i.e. the first groove part and the second groove part can be arranged in same instrument and keep in disk.

In a preferred embodiment, the Part I of groove is arranged in the first instrument and kept in disk, and second of groove Second instrument that is arranged in is divided to keep in disk, in this case, instrument keeps disk to be positioned to mutual juxtaposed relation so that recessed The Part I and Part II of groove form groove.If each instrument keeps disk to have not only the first groove part but also second Groove part, first groove part and the second groove part keep corresponding the second of disk to another instrument of adjacent positioned respectively Groove part and the first groove part are set to form groove together, then are particularly preferred.

Therefore, although in case of the present embodiment, each instrument keeps disk at least to have the first groove part and gone back With the second groove part, but they formed not together same instrument keep disk in groove.On the contrary, groove only with adjacent work Tool keeps the corresponding part of the groove in disk to be formed together.

Groove can also keep more than two groove parts in disk to form by different instruments so that the geometric form of groove Shape can also keep disk to be formed by more than two instruments.

The part of groove can have such configuration：The Part I of groove forms the first groove part, and groove Part II formed the second groove part.However, this needs not be such.

In another preferred embodiment, retained part is tightened to tool shaft or is preferably tightened to tool holder.If Retained part has more part-structures, then according to the present embodiment, at least a portion of retained part should be tightened to tool shaft or Preferably it is tightened to tool holder.

In another preferred embodiment, there is provided be arranged in the second groove part and cover the protection member of retained part Part.In this case, protection element preferably completely encloses the second groove part without gap, and more specifically preferably It is very close to each other relative to stirring vane.Protection element can be such as protective cap, and it for example by plastics or can be easily removed Another material is made.In this case, groove should terminate with flushing with the outline of tool holder as far as possible, to prevent Protective cap unexpectedly releases from groove part at work.

Alternatively, groove can also use sizing (condensation) injection of similar such as silicones or cast material to close.

In another particularly preferred embodiment, stirring vane part and tool holder pass through pin connection or another shape Formula locking is connected to link together.For example, stirring vane part can with the preferably through hole with circular cross section, And sell may be arranged at and be connected in the first groove part of tool holder.In order to fix stirring vane part, blade-section It can be shifted onto by its through hole on pin.

Under the high peripheral speed of agitating shaft, when the power for being produced due to centrifugal force and reduction being present at the place of being clamped and connected is locked During effect, the locking connection of form fit formula prevents stirring vane from deviating from from groove.

In another preferred embodiment, it is specified that instrument keeps disk in the cross section perpendicular to rotation axis substantially in circle The locking connection of ring-shaped, wherein form fit formula, such as the pin of pin connection, it is arranged to compared to outer radius, closer to annular The inside radius of shape.

In another preferred embodiment, have for stirring vane part and lock the part connected as form fit formula , it is specified that retained part covers the opening at least in part, opening is preferably completely covered in retained part for the situation of opening.This Sample, on the one hand, opening also prevents dust, and on the other hand, the stiction between retained part and stirring vane part subtracts Small, the thus assembly or disassembly of agitating shaft is easier.

In addition, preferably clamping action is realized by the arrangement.Therefore, the preferably cloth of retained part in an inserted condition Be set to and cause in projection in the plane perpendicular to rotation axis, retained part partly or preferably completely with form fit formula Locking connection is overlapping.In other words, retained part is arranged in above or below the locking connection of form fit formula in the axial direction.

In another preferred embodiment, it is specified that the maximum expanded range (amount) of retained part in circumferential direction is more than stirs Mix the maximum expanded range (amount) of blade-section.

Particularly in the case where needing the application of multiple stirring vanes only closely spaced in the axial direction, in axial direction The minimum spacing between stirring vane part and tool holder on direction, which is less than, locks stirring vane from form fit formula The displacement stroke of required stirring vane in the axial direction is unclamped in connection.

In order to which stirring vane is inserted into tool holder or taken out from tool holder, then stirring vane can be relative to vertical In the planar tilt of rotation axis.By means of corresponding wedge-shaped surface, the inclination is possible.Stirring vane can not incline Unclamped in the case of tiltedly, i.e. can not be only by relative to the moving axially relative and release of tool holder.

Brief description of the drawings

Other advantages, feature and possible purposes of the present utility model are by from the description of preferred embodiments below and accompanying drawing In display, in accompanying drawing：

Fig. 1 shows the stereogram according to agitating shaft of the present utility model；

Fig. 1 a show the partial perspective view of the embodiment shown in Fig. 1；

Fig. 2 is shown through the longitudinal cross-section of the embodiment according to agitating shaft of the present utility model；

Fig. 3 shows that the instrument of the embodiment shown in Fig. 1 keeps the plan of disk；

Fig. 4 shows the isometric detail drawing according to agitating shaft of the present utility model；

Fig. 5 shows the isometric detail drawing according to agitating shaft of the present utility model；

Fig. 6 shows the partial sectional view of the embodiment shown in Fig. 1；

Fig. 7 shows the front isometric view of retained part；

Fig. 8 shows the stereo rearview of the retained part shown in Fig. 7；

Fig. 9 is shown using longitudinal profile when semicircle claw (half-round dog) through axle；

Figure 10 shows the stereogram of the agitating shaft of the embodiment shown in Fig. 9；

Figure 11 shows the partial sectional view of second embodiment；

Figure 12 shows the stereogram of closing cover；

Figure 13 shows the exploded view of 3rd embodiment；And

Figure 14 shows the three-dimensional cutaway view of 3rd embodiment.

Embodiment

Fig. 1 shows the stereogram of agitating shaft 1.Agitating shaft 1 has tool holder, and in the present embodiment, the instrument is protected Holder includes multiple instruments and keeps disk 2.Instrument keeps disk 2 to form cylinder together, and the cylinder is at work around its cylinder axis Line rotates.Multiple stirring vanes 3 protrude past the outer surface of the cylinder.These stirring vanes 3 can have sloping edge 4, but this It is not necessarily so.Therefore, in figure, some stirring vanes 3 are shown with corresponding tilt edge, and other stirring vanes do not have Such edge.

In its upper end, agitating shaft 1 has mounting flange 5, and it can be fixed to respective drive by mounting flange 5.

Protective cap 6 can be seen in the surface of stirring vane 3 or underface.Protective cap 6 may be mounted to instrument and keep disk 2 Terminate in respective slot part and with being flush with it.Protective cap 6 can be for example made of plastics.

Fig. 1 a show the partial perspective view of the embodiment shown in Fig. 1.Various stirring vane geometries are not only in Fig. 1 And show in fig 1 a.However, generally, single geometry is used in agitating shaft.However, accompanying drawing is intended to clear explanation principle On can use different geometries.

In addition, protective cap 6 is shown as part above stirring vane 3 and partly below stirring vane 3.Generally, it is preferred to Embodiment is that wherein protective cap is either all arranged in above stirring vane or person is all arranged in the reality below stirring vane Apply example.

Each instrument keeps disk 2 to be arranged on agitating shaft 10 (Fig. 1 and 1a not shown in).In order to which each instrument is kept into disk 2 against each other, and there is the arrangement upper annular to terminate disk 7, support ring 8 and multiple supporting screws 9.Rounded ring (not shown) form Leaf spring be arranged on and terminate disk 7 and uppermost instrument and keep below the top edge of disk 2.Supporting screw 9 can be fixed on support In corresponding screwed hole in ring 8 so that supporting screw 9 will terminate disk 7 and be pressed onto on this group of instrument holding disk 2 and it be propped up Support.Under holding state, leaf spring produces the reaction force to terminating disk 7, reliably to prevent supporting screw from releasing at work. Instrument keeps disk to be supported at the lower end of tool shaft on termination disk 7', and termination disk 7' is in the shape of circle or annulus and tightens Onto axle.

Fig. 2 is shown with the longitudinal cross-section through axle 10 through the section of retained part 11.It can also see herein Disk 2 is kept to the instrument with screwed hole 13.Retained part 11 is rapidly tightened in instrument by means of fixing screws 12 and keeps disk 2 Screwed hole 13 in.Stirring vane 3 is supported in tool holder by means of retained part 11.In order to avoid solid during operation Determine the pollution of screw 12, particularly the pollution of its screw head, instrument keeps the groove in disk to have configuration which so that protects Helmet 6 can be installed in groove so that it is terminated with being substantially flush, to avoid dust from entering groove.

Fig. 3 shows that instrument keeps the plan of disk 2.The figure clearly show the tool shaft for receiving correspondingly-shaped 10 hexagonal indentations 14.

In the embodiment shown, instrument keeps disk 2 to have two grooves, and a part for stirring vane 3 is installed to this two In corresponding one in groove.In the embodiment shown, stirring vane 3 has circular open, is connected to the pin that instrument keeps disk 2 15 pass through the circular open.

By contrast, the part of another stirring vane 3 has two recesses in left hand edge and right edge, is respectively mounted Two pins 16 for keeping disk to instrument are joined in two recesses.The figure shows two different fixed systems, i.e., with pin 15 Fix or the fact that fixed with two pins 16 be merely to illustrate different fixed systems and can be used for forming form fit formula locking company Connect.Generally, it is preferred to the storage request for reducing corresponding stirring vane using only the embodiment of one in two fixed systems 's.Only for the situation for the stirring vane that different geometries are used in agitating shaft, different fixed systems can be used for knowing Other stirring vane geometry, to ensure that correct stirring vane geometry is always located in correct groove.Pin, projection or Groove can also be formed with for example semicircular part circular cross section or another cross section.

Fig. 4 shows another isometric detail view according to agitating shaft of the present utility model.

Here it will be seen that the groove in tool holder keeps extending on disk 2 in two instruments.Lower instrument is arranged in keep The part of groove in disk 2 includes the first groove part.A part for stirring vane 3 is located in the groove part.Second groove Part is partially disposed within the part for the groove for keeping disk 2 to provide by upper instrument.Therefore retained part 11 is partly arranged In the groove part for keeping disk to provide by lower instrument and it is partially positioned in the concave part that provides of disk 2 is kept by upper instrument In point.In an illustrated embodiment, protective cap 6 is U-shape, and its middle rib is arranged in the outside for dividing limb of U-shaped, and the ribbed joint arrives In the corresponding groove 18 in the inwall of the second groove part.The protective cap 6 being preferably made from plastic can then be caught in corresponding recessed In groove so that it is joined in groove 18.For the purpose of taking-up, protective cap can for example be pierced through with instrument and prized from groove Go out.

Groove has stair-stepped configuration in the axial direction, i.e. groove has the portion of smaller width in circumferential direction Point and larger width in circumferential direction part.The width of stirring vane part is substantially consistent with the smaller width, So that stirring vane part is mountable in the part of smaller width.However, the height of stirring vane part in the axial direction Height of the degree slightly larger than the part of smaller width so that stirring vane part is slightly projected into the part of larger width.

The arrangement ensures that retained part 11 is supported on stirring vane part rather than keeps the top surface of disk in lower instrument On, so as to allow firm power locking connection.

Fig. 5 shows another isometric detail drawing according to agitating shaft of the present utility model.In the present embodiment, stirring vane 3 With through hole 15, pin is joined in the through hole 15.In embodiment as shown here, pin keeps disk 2 integral with instrument.

In addition, here through retained part 11 section selection into so that it can be seen that pushing screw thread 17' open with adjacent Another hole 17.This has that to push screw thread 17' hole 17 open be only needed for dismounting retained part 11.First, screw 12 is unclamped.For Retained part 11 extruded into its position, is inserted screws into hole 17, then the bottom of screw is for example pressed against tool shaft 10, with Retained part 11 is radially outward pushed away.

This will be seen more clearly by referring to the viewgraph of cross-section in Fig. 6 through retained part 11.Here will see Arrive, retained part 11 is maintained at instrument by two fixing screws 12 and kept on disk 2.Another hole 17/17' can be used for clamping part 11 are divided to keep extruding in disk 2 from instrument.

Fig. 7 and Fig. 8 shows two stereograms of retained part 11.Retained part 11 has inclined wedge-shaped surface 19. Disk 2 is kept by the way that retained part 11 is installed into instrument, retained part 11 can be by the fixation spiral shell that is joined in corresponding aperture 20 Nail 12 radially-inwardly presses so that bears against and keeps the wedge-shaped surface 19 of the corresponding wedge-shaped surface of disk 2 to be supported on work in instrument Has the part of the stirring vane in retainer.

Fig. 9 is shown to be cut using the longitudinal direction during semicircle claw being fixed on stirring vane in tool holder by axle Face.The stereogram of the stirring vane 3 of the present embodiment is shown in Figure 10.In the present embodiment, stirring vane 3 has two semicircles Claw 21, the two semicircle claws 21 are joined in the corresponding aperture 16 that instrument is kept in disk 2.In the embodiment shown, claw with Stirring vane is integrally joined to stirring vane.In principle, rather than claw can be fixed to instrument and keep disk 2, in this feelings Under condition, the part of stirring vane 3 will must have corresponding hole or groove for receiving claw.

The replacement fixed options as second embodiment of the present utility model are shown in Figure 11 isometric views.One side Face, here, wedge shaped holding part 11 are arranged in the lower section of stirring vane 3.On the other hand, here there is provided independent pin 21, this is independent In the corresponding opening 15 that pin 21 is not joined only in stirring vane and it is joined in the corresponding opening 22 that instrument is kept in disk 2. In this respect, the length of the pin part for the pin 21 being joined in stirring vane 3 is less than the height of stirring vane 3, to allow more to hold Easily take out and keep the configuration of disk more compact on instrument.In this case, stirring vane 3 is completely covered in retained part 11 In through hole 22.In the present embodiment, the minimum spacing a between stirring vane part 3 and tool holder 2 in the axial direction More than the height b of stirring vane part 3 in the axial direction.Alternately, but it can also be smaller.Possibly even It is that the minimum spacing a between stirring vane part and tool holder is less than and matches somebody with somebody stirring vane from shape in the axial direction The displacement stroke c of stirring vane part in the axial direction needed for box-like locking Connection Release.

Figure 12 shows the stereogram of the inside of protective cap 6.As can be seen that cap 6 has around three ribs to extend sideways 18, Rib 18 is joined in the corresponding groove 19 that instrument is kept in disk 2.In addition, on the 4th edge, it has groove 23, so as to allow phase Closing as gapless as possible for stirring vane 3.

Figure 13 shows the exploded perspective view of 3rd embodiment of the present utility model.Identical part uses identical as far as possible Reference represents.

By example, there is illustrated two instruments to keep disk 2, and they have together is used to receive stirring vane 3 and folder Hold the groove of part 25,26.Retained part 25,26 includes Part I 25 and Part II 26.Two parts 25,26 have phase Wedge-shaped surface 27 corresponding to mutually.Two parts 25,26 are stacked on top of each other so that corresponding wedge-shaped surface 27 (support) each other against.Wedge The Part II 26 of shape element has hole 29, and here, hole 29 is in the form of shoulder hole.The Part I of retained part 25 has spiral shell Pit 28.Part II 26 can be fixed to Part I 25 by fixing screws 30.Part I 25 is by tightening screw 30 It is pulled along the direction of Part II 26 so that it is shifted in wedge-shaped surface 27, and the wedge-shaped element 25,26 of two-part In axial direction expand, so as to produce clamping action.

As can be from being found out the three-dimensional cutaway view in Figure 14, the Part II 26 of retained part be solid by fixing screws 12 Surely arrive instrument and keep disk 2.In this case, the Part II 26 of retained part has such configuration so that it is substantially The outer surface for keeping disk 2 with instrument terminates with flushing.If tightening now or unclamping fixing screws 30, this causes clamping part The power that points 25 Part I is applied by means of fixing screws 30 relative motion in radial directions and by means of with phase The relative motion of the wedge-shaped surface 27 of configuration in the axial direction is mutually corresponded to, thus wedge-shaped element becomes respectively in the axial direction " thicker " and " thinner ", stirring vane 3 is kept being held in place in the groove of disk 2 or unclamping stirring vane 3 in instrument.

In order to prevent the head of screw 12,30 from polluting during operation, plug is installed in shoulder hole.

Reference numerals list

1 agitating shaft

2 instruments keep disk

3 stirring vanes

4 sloping edges

5 mounting flanges

6 protective caps

7 terminate disk

The threaded termination disks of 7'

8 support rings

9 supporting screws

10 tool shafts

11 retained parts

12,30 fixing screws

13,28 screwed holes

14 hexagonal indentations

15 pins

16 two pins

17,29 holes

17' pushes screw thread open

18 grooves/rib

19 wedge-shaped surfaces/groove

20 holes

21 claws/individually sell

22 corresponding openings

23 grooves

24 plugs

The Part I of 25 retained parts

The Part II of 26 retained parts

27 wedge-shaped surfaces

Claims

1. a kind of agitating shaft, including tool holder and stirring vane, wherein, the tool holder has groove, described to stir The part for mixing blade is fixed in the groove, it is characterised in that provides retained part, the retained part is installed to institute State in groove, for the stirring vane part to be fixed in the groove, wherein the retained part, the groove and institute Stating stirring vane part has such configuration so that power locking connection of the stirring vane in the groove is by means of institute State retained part realization.

2. agitating shaft as claimed in claim 1, it is characterised in that the groove has the first groove part and the second concave part Point, wherein, the paddle is partially disposed in first groove part, and the retained part is arranged at least in part In second groove part.

3. agitating shaft as claimed in claim 2, it is characterised in that the retained part is not only supported at the paddle part Place and it is supported at the wall of second groove part, wherein the retained part and paddle part or the second concave part The wall divided all has mutually corresponding wedge-shaped surface.

4. agitating shaft as claimed in claim 2, it is characterised in that the retained part is not only supported at the paddle part Place and it is supported at the wall of second groove part, wherein the retained part has the structure of two segment boundses, and Two parts of the retained part have mutually corresponding wedge-shaped surface.

5. agitating shaft as claimed in claim 4, it is characterised in that the Part I of the retained part has screwed hole, and And the Part II of the retained part has through hole, they are arranged so as into so that described second of the retained part The Part I of the retained part can be fixed to by screw by dividing, and the screw is placed through in the second retained part The through hole, it is joined in the screwed hole in the Part I of the retained part so that the wedge-shaped table of correspondence Face is born against each other, and described two parts of the retained part can be displaced relative to each other by rotary screw.

6. the agitating shaft as described in one in claim 1-5, it is characterised in that the tool holder has rotary shaft Line, and the agitating shaft is suitable to rotate around the rotation axis.

7. agitating shaft as claimed in claim 6, it is characterised in that second groove part is arranged in along the axial direction Beside first groove part.

8. agitating shaft as claimed in claim 6, it is characterised in that the tool holder includes tool shaft and is connected to institute The multiple instruments for stating tool shaft keep disk, wherein, the groove arrangement is kept at least one instrument in disk.

9. agitating shaft as claimed in claim 8, it is characterised in that the groove includes two groove parts, wherein first is recessed Slot part is arranged in the first instrument and kept in disk, and the second groove part is arranged in the second instrument and kept in disk, wherein described Instrument keeps disk to be positioned to mutual juxtaposed relation so that first groove part and second groove part form institute State groove.

10. agitating shaft as claimed in claim 9, it is characterised in that each instrument keeps disk to have not only the first groove part And second groove part, first groove part and the second groove part keep disk with another instrument of adjacent positioned respectively Corresponding second groove part and the first groove part set together to form groove.

11. the agitating shaft as described in one in claim 1-5, it is characterised in that the retained part is tightened to the work Has axle.

12. agitating shaft as claimed in claim 11, it is characterised in that provide protection element, the protection element is arranged in In second groove part and the retained part is covered, wherein, the protection element completely encloses second concave part Point.

13. the agitating shaft as described in one in claim 1-5, it is characterised in that the stirring vane part and the work Have retainer and connection is locked by form fit formula.

14. agitating shaft as claimed in claim 13, it is characterised in that the stirring vane part has through hole, and in institute The pin for being disposed with the first groove part and being connected to the tool holder is stated, wherein, in order to fix the stirring vane part, The stirring vane part can be shifted onto on the pin by its through hole.

15. agitating shaft as claimed in claim 13, it is characterised in that instrument keeps disk perpendicular to the cross section of rotation axis In be substantially in toroidal, wherein, form fit formula locking connection is arranged to compared to external diameter closer to the annular The internal diameter of shape.

16. agitating shaft as claimed in claim 14, it is characterised in that the stirring vane part has matches somebody with somebody as the shape The opening of a part for box-like locking connection, and the retained part covers the opening at least in part.

17. the agitating shaft as described in one in claim 1-5, it is characterised in that the retained part in circumferential direction Maximum expanded range be more than the stirring vane part maximum expanded range.

18. agitating shaft as claimed in claim 13, it is characterised in that on the axial direction stirring vane part with Minimum spacing (a) between the tool holder is less than locks Connection Release by the stirring vane from the form fit formula Required, the stirring vane part on the axial direction displacement stroke (c).

19. agitating shaft as claimed in claim 11, it is characterised in that the retained part is tightened to the tool holder.

20. agitating shaft as claimed in claim 12, it is characterised in that the protection element is protective cap.

21. agitating shaft as claimed in claim 13, it is characterised in that the stirring vane part and the tool holder lead to Pin connection is crossed to link together.

22. agitating shaft as claimed in claim 14, it is characterised in that the through hole has circular cross section.

23. agitating shaft as claimed in claim 16, it is characterised in that the opening is completely covered in the retained part.